:root {
  --bg: #070707;
  --ink: #f5f5f5;
  --muted: #b8b8b8;
  --muted2: #737373;
  --line: rgba(255,255,255,.12);
  --panel: rgba(255,255,255,.055);
  --panel2: rgba(255,255,255,.085);
  --white: #fff;
  --black: #080808;
  --paper: #efefef;
  --paperInk: #161616;
  --shadow: 0 24px 80px rgba(0,0,0,.34);
  --radius: 28px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  color: var(--ink);
  background: var(--bg);
  letter-spacing: .01em;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.page-bg {
  position: fixed; inset: 0; z-index: -1;
  background:
    radial-gradient(circle at 50% -10%, rgba(255,255,255,.14), transparent 34rem),
    radial-gradient(circle at 90% 35%, rgba(255,255,255,.06), transparent 22rem),
    linear-gradient(to right, rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.035) 1px, transparent 1px),
    #070707;
  background-size: auto, auto, 52px 52px, 52px 52px, auto;
}
.section-wrap { width: min(1160px, calc(100% - 40px)); margin-inline: auto; }
.site-header {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: 15px max(20px, calc((100vw - 1160px) / 2));
  border-bottom: 1px solid var(--line);
  background: rgba(7,7,7,.82);
  backdrop-filter: blur(18px);
}
.brand { display: flex; align-items: center; gap: 12px; min-width: max-content; }
.brand img { width: 46px; height: 42px; object-fit: contain; }
.brand-title { margin: 0; font-weight: 900; letter-spacing: .2em; }
.brand-subtitle { margin: 2px 0 0; color: var(--muted2); font-size: 12px; }
.global-nav { display: flex; gap: 26px; font-size: 14px; color: #d7d7d7; }
.global-nav a { transition: color .2s ease; }
.global-nav a:hover { color: var(--white); }
.header-cta, .button {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  border-radius: 999px;
  font-weight: 850;
  transition: transform .2s ease, background .2s ease, border-color .2s ease;
}
.header-cta { background: var(--white); color: var(--black); padding: 11px 18px; font-size: 14px; }
.header-cta:hover, .button:hover { transform: translateY(-1px); }
.hero { display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 56px; padding: 88px 0 74px; }
.eyebrow { display: inline-flex; width: fit-content; margin: 0 0 24px; padding: 9px 14px; border: 1px solid var(--line); border-radius: 999px; background: rgba(255,255,255,.075); color: #dedede; font-size: 13px; font-weight: 800; letter-spacing: .12em; }
.eyebrow.dark { background: #fff; color: #111; border-color: #ddd; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 24px; font-size: clamp(48px, 8vw, 86px); line-height: 1.02; letter-spacing: -.06em; font-weight: 950; }
h1 span { display: block; color: #cfcfcf; }
h2 { font-size: clamp(34px, 5vw, 56px); line-height: 1.04; letter-spacing: -.045em; margin-bottom: 18px; font-weight: 950; }
h3 { font-weight: 920; letter-spacing: -.02em; }
.lead { max-width: 660px; color: var(--muted); font-size: 18px; line-height: 1.9; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.button { min-height: 52px; padding: 0 24px; border: 1px solid transparent; }
.button.primary { background: #fff; color: #080808; }
.button.primary:hover { background: #dedede; }
.button.secondary { background: rgba(255,255,255,.05); border-color: var(--line); color: #fff; }
.button.secondary:hover { background: rgba(255,255,255,.1); }
.button.compact { min-height: 46px; padding-inline: 20px; margin-top: 18px; }
.hero-card { position: relative; padding: 30px; border: 1px solid var(--line); border-radius: 38px; background: linear-gradient(145deg, rgba(255,255,255,.105), rgba(255,255,255,.035)); box-shadow: var(--shadow); overflow: hidden; }
.hero-card:before { content: ""; position: absolute; inset: -120px -80px auto auto; width: 280px; height: 280px; border-radius: 999px; background: rgba(255,255,255,.13); filter: blur(55px); }
.hero-logo { width: min(460px, 100%); margin: 4px auto 22px; filter: drop-shadow(0 28px 42px rgba(0,0,0,.45)); }
.metric-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.metric-grid div { border: 1px solid var(--line); background: rgba(0,0,0,.28); border-radius: 20px; padding: 15px 10px; text-align: center; }
.metric-grid strong { display: block; font-size: 26px; line-height: 1; }
.metric-grid span { display: block; margin-top: 8px; color: var(--muted2); font-size: 12px; }
.note { margin: 18px 0 0; color: var(--muted2); font-size: 12px; line-height: 1.8; }
.stats-strip { border-block: 1px solid var(--line); background: rgba(255,255,255,.04); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; padding-block: 32px; }
.stats-grid div { padding: 20px; border: 1px solid var(--line); border-radius: 22px; background: rgba(255,255,255,.055); }
.stats-grid span { color: var(--muted2); font-size: 13px; }
.stats-grid strong { display: block; margin-top: 8px; font-size: 22px; }
.section { padding: 92px 0; }
.section-heading { max-width: 780px; margin-bottom: 42px; }
.section-heading p:not(.eyebrow) { color: #555; line-height: 1.85; }
#principles, .news-section { color: var(--paperInk); background: var(--paper); width: 100%; max-width: none; padding-inline: max(20px, calc((100vw - 1160px) / 2)); }
#principles.section-wrap, .news-section.section-wrap { width: 100%; }
.card-grid { display: grid; gap: 20px; }
.card-grid.three { grid-template-columns: repeat(3, 1fr); }
.card { border: 1px solid rgba(0,0,0,.08); background: #fff; border-radius: var(--radius); padding: 28px; box-shadow: 0 14px 46px rgba(0,0,0,.08); }
.card p { color: #555; line-height: 1.85; }
.icon { display: grid; place-items: center; width: 58px; height: 58px; margin-bottom: 22px; border-radius: 20px; background: #111; color: #fff; font-size: 24px; font-weight: 900; }
.icon.no-leaf { position: relative; }
.icon.no-leaf:after { content: "葉"; font-size: 13px; position: absolute; }
.icon.seed { background: #eee; color: #7a5a2a; border: 1px solid #ddd; }
.icon.table { background: #333; }
.statement { padding: 74px 0; text-align: center; border-block: 1px solid var(--line); background: linear-gradient(135deg, #111, #050505); }
.statement blockquote { margin: 0 auto 26px; max-width: 990px; font-size: clamp(28px, 4.7vw, 50px); line-height: 1.45; font-weight: 950; letter-spacing: -.045em; }
.statement p:not(.eyebrow) { color: var(--muted); line-height: 1.9; }
.split-section { display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; align-items: start; }
.body-text { color: var(--muted); line-height: 1.9; }
.member-card-callout { margin-top: 32px; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; background: var(--panel); }
.mini-label { margin-bottom: 10px; color: var(--muted2); font-size: 12px; font-weight: 900; letter-spacing: .2em; }
.member-card-callout p:not(.mini-label) { color: var(--muted); line-height: 1.8; }
.activity-list { display: grid; gap: 16px; }
.activity-item { display: flex; gap: 16px; padding: 21px; border: 1px solid var(--line); border-radius: 24px; background: rgba(255,255,255,.055); }
.activity-item span { display: grid; place-items: center; flex: 0 0 46px; height: 46px; border-radius: 16px; background: rgba(255,255,255,.1); }
.activity-item h3 { margin-bottom: 6px; }
.activity-item p { margin: 0; color: var(--muted); line-height: 1.7; font-size: 14px; }
.join { display: grid; grid-template-columns: 1fr .9fr; gap: 38px; margin-bottom: 92px; padding: 42px; border: 1px solid var(--line); border-radius: 40px; background: linear-gradient(135deg, rgba(255,255,255,.12), rgba(255,255,255,.035)); box-shadow: var(--shadow); }
.join p { color: var(--muted); line-height: 1.9; }
.join-list { border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; background: rgba(0,0,0,.18); }
ul { margin: 18px 0 0; padding: 0; list-style: none; display: grid; gap: 13px; }
li { position: relative; padding-left: 28px; color: var(--muted); line-height: 1.6; }
li:before { content: "✓"; position: absolute; left: 0; top: 0; color: #fff; font-weight: 900; }
.news-card { background: #fff; border: 1px solid rgba(0,0,0,.08); border-radius: var(--radius); padding: 28px; }
.news-card > p:first-child { display: flex; gap: 12px; align-items: center; margin-bottom: 18px; }
.news-card time { font-size: 13px; color: #555; font-weight: 800; }
.news-card span { border-radius: 999px; background: #eee; padding: 5px 10px; font-size: 12px; color: #555; }
.news-card p:last-child { color: #555; line-height: 1.8; }
.site-footer { border-top: 1px solid var(--line); padding: 48px 0; }
.footer-grid { display: grid; grid-template-columns: 1.2fr .7fr .9fr; gap: 48px; }
.footer-brand img { width: 50px; }
.footer-copy, .copyright { color: var(--muted2); line-height: 1.8; font-size: 13px; }
.site-footer h3 { margin-bottom: 16px; }
.site-footer a { display: block; width: fit-content; margin-bottom: 10px; color: var(--muted); font-size: 14px; }
.site-footer a:hover { color: #fff; }
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: .1s; }
.delay-2 { transition-delay: .2s; }
.delay-3 { transition-delay: .3s; }
@media (max-width: 940px) {
  .global-nav { display: none; }
  .hero, .split-section, .join, .footer-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 58px; }
  .card-grid.three, .stats-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .site-header { align-items: flex-start; flex-wrap: wrap; }
  .header-cta { width: 100%; }
  .hero-actions .button { width: 100%; }
  .card-grid.three, .stats-grid, .metric-grid { grid-template-columns: 1fr; }
  .join { padding: 26px; border-radius: 30px; }
  h1 { font-size: 46px; }
  .section { padding: 68px 0; }
}